The purpose of this study is to compare the presence, degree, time course and profile of
opioid withdrawal symptoms associated with induction onto new formulations of buprenorphine
or buprenorphine/naloxone in persons with active opioid dependence. The primary outcome
measure is the severity of withdrawal symptoms measured using the Clinical Opiate Withdrawal
Scale. The primary study hypothesis is that neither drug formulation will precipitate an
opioid withdrawal syndrome.
- Provide written informed consent.
- Have a DSM-IV diagnosis of opioid dependence.
- Be male or female, 18 to 65 years of age, inclusive.
- If female, have a negative pregnancy test during screening and agree to use an
acceptable method of birth control.
Subjects must not:
- Have participated in an experimental drug or device study within the last 30 days.
- Be currently (past 30 days from start of screening) engaged in opioid agonist, opioid
partial agonist, or opioid antagonist treatment.
- If female, be breast feeding or lactating.
- Have any medical condition that in the opinion of the physician investigator would
preclude the subject from completing the study.
- Have any clinically significant non-substance use psychiatric disorder (e.g.,
- Have current suicidal ideation.
- Have a Mini Mental Status Exam score less than 24.
- Have physical dependence on alcohol.
- Have physical dependence on sedative-hypnotics.
- Have active aphthous stomatitis.
- Have active oral herpes.
- Need on-going prescription medications that interact with the P450 3A4 system.